test: add fuzzing coverage for incoming packet parsing (#1829) · python-zeroconf/python-zeroconf@868391c · GitHub

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bdraco

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test: add fuzzing coverage for incoming packet parsing (#1829)

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+298-1Lines changed: 298 additions & 1 deletion

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• .gitignore
• poetry.lock
• pyproject.toml
• tests
  • conftest.py
  • test_fuzz_incoming.py

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+1Lines changed: 1 addition & 0 deletions

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@@ -18,3 +18,4 @@ docs/_build/
18	18	/dist/
19	19	/zeroconf.egg-info/
20	20	/src/**/*.c
	21	+ .hypothesis/

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‎poetry.lock‎

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‎pyproject.toml‎

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@@ -92,6 +92,7 @@ setuptools = ">=83.0.0,<84.0.0"
92	92	pytest-timeout = "^2.1.0"
93	93	pytest-codspeed = ">=5.0.3,<6.0"
94	94	blockbuster = ">=1.5.27,<2.0.0"
	95	+ hypothesis = {version = "^6.165.10", markers = "implementation_name == 'cpython'"}
95	96
96	97	[tool.poetry.group.docs.dependencies]
97	98	sphinx = "^7.4.7 || ^8.1.3"

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‎tests/conftest.py‎

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+16Lines changed: 16 additions & 0 deletions

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@@ -2,6 +2,8 @@
2	2
3	3	from __future__ import annotations
4	4
	5	+ import importlib.util
	6	+ import os
5	7	import threading
6	8	from collections.abc import AsyncGenerator, Generator, Iterator
7	9	from unittest.mock import patch
@@ -15,6 +17,20 @@
15	17	from zeroconf._services import info as service_info
16	18	from zeroconf.asyncio import AsyncZeroconf
17	19
	20	+ # The dev dependency group only installs hypothesis on CPython (the CI
	21	+ # matrix pins pypy-3.10 and hypothesis ships no pp310 wheels), and a
	22	+ # non-dev install has no hypothesis at all.
	23	+ collect_ignore: list[str] = []
	24	+ if importlib.util.find_spec("hypothesis") is None:
	25	+ collect_ignore.append("test_fuzz_incoming.py")
	26	+ else:
	27	+ from hypothesis import settings as _hypothesis_settings
	28	+
	29	+ # Deterministic in CI; set HYPOTHESIS_PROFILE=long for a deep local run.
	30	+ _hypothesis_settings.register_profile("ci", derandomize=True, max_examples=200, deadline=None)
	31	+ _hypothesis_settings.register_profile("long", max_examples=50000, deadline=None)
	32	+ _hypothesis_settings.load_profile(os.environ.get("HYPOTHESIS_PROFILE", "ci"))
	33	+
18	34	try:
19	35	from blockbuster import BlockBuster, blockbuster_ctx
20	36	except ImportError: # platforms without blockbuster (e.g. PyPy under QEMU)

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